ARK Investment Management LLC

Catherine Wood

With over 40 years of experience, Cathie Wood founded ARK in 2014 to focus solely on disruptive innovation while adding new dimensions to research. Through an open approach that spans across sectors, market capitalizations and geographies, she believes ARK can identify large-scale investment opportunities in the public markets resulting from technological innovations centered around DNA sequencing, robotics, artificial intelligence, energy storage and blockchain technology. As chief investment officer and portfolio manager, Wood spearheaded the development of ARK’s philosophy and investment approach and is ultimately responsible for investment decisions.

Holdings MV

10.18B

Last Updated

2025-12-15

Total Holdings

Tracker Performance

ARK Investment Management LLC

S&P 500

Total Return

+19.91%

Annualized Return

+47.85%

1 Day Change

-1.83%

Sharpe Ratio

1.17

Trade Updates

2025-12-15

Ticker

Name

12/15

Sell

2.61%

Fill Price --

2.55%

Ticker

Name

12/15

Sell

6.48%

Fill Price --

6.33%

Ticker

Name

12/15

Sell

2.75%

Fill Price --

2.71%

Ticker

Name

12/15

Sell

3.02%

Fill Price --

2.97%

Ticker

Name

12/15

Buy

2.43%

Fill Price --

2.56%

Ticker

Name

12/15

Buy

6.09%

Fill Price --

6.30%

Ticker

Name

12/15

Sell

2.46%

Fill Price --

2.44%

Ticker

Name

12/15

Sell

5.53%

Fill Price --

5.44%

Ticker

Name

12/15

Buy

2.15%

Fill Price --

2.18%

Ticker

Name

12/15

Buy

5.85%

Fill Price --

5.89%

Ticker

Name

12/15

Sell

2.75%

Fill Price --

2.69%

Ticker

Name

12/15

Sell

2.09%

Fill Price --

0.00%

Ticker

Name

12/15

Sell

7.37%

Fill Price --

7.28%

Ticker

Name

12/15

Sell

4.74%

Fill Price --

4.62%

Ticker

Name

12/15

Buy

7.20%

Fill Price --

7.77%

Ticker

Name

12/15

Sell

7.78%

Fill Price --

7.77%

Ticker

Name

12/15

Sell

5.21%

Fill Price --

4.98%

Ticker

Name

12/15

Sell

5.41%

Fill Price --

5.17%

Ticker

Name

12/15

Buy

15.95%

Fill Price --

16.17%

Ticker

Name

12/15

Buy

0.00%

Fill Price --

2.04%

Current Holdings

Medical Biology

17.61%

Non-Bank Financials

17.19%

Auto

16.17%

Electronics

15.78%

Computer

15.05%

Internet & Media

12.39%

Defense

5.24%

Commerce

2.71%

Leisure Services

0.00%

Symbol

P&L %

Position Size

Ticker

Name

+147.83%

2.69%

Ticker

Name

+73.86%

5.17%

Ticker

Name

+61.66%

5.89%

Ticker

Name

+52.56%

16.17%

Ticker

Name

+48.21%

2.97%

Ticker

Name

+40.80%

7.77%

Ticker

Name

+37.97%

7.28%

Ticker

Name

+23.23%

6.33%

Ticker

Name

+22.45%

7.77%

Ticker

Name

+17.89%

5.44%

Ticker

Name

+9.13%

4.98%

Ticker

Name

+0.66%

2.71%

Ticker

Name

+0.34%

2.18%

Ticker

Name

0.00%

2.04%

Ticker

Name

-2.78%

2.14%

Ticker

Name

-15.43%

4.62%

Ticker

Name

-20.57%

2.56%

Ticker

Name

-23.36%

2.55%

Ticker

Name

-23.96%

6.30%

Ticker

Name

-61.22%

2.44%

Investing Philosophy

Recognizing that disruptive innovation causes rapid cost declines, cuts across sectors and spawns further innovation, ARK uses an iterative investment process that combines top-down and bottom-up research. The firm strives to identify innovation early in order to capitalize on the opportunity, providing long-term value to investors.

Disclaimer

This simulated portfolio Tracker is based on holdings disclosed in institutional 13F filings. We select the top 20 holdings and construct a portfolio weighted by their relative proportions. Holdings beyond the top 20 are excluded, as their impact on the portfolio is minimal. Focusing on the top 20 enhances practicality and reflects the institution's stock-picking ability. The portfolio is periodically rebalanced to align with updated 13F filings. Note that 13F disclosures typically have a 45-day delay (e.g., Q2 2025 data is disclosed by mid-August). Users should consider this lag when tracking the portfolio, though institutional holdings are generally long-term, emphasizing strategic rationale behind changes. This portfolio is for illustrative purposes only and does not constitute investment advice. All investment decisions are the user's responsibility. Investing involves risks, including potential loss of principal. Past performance is not indicative of future results.